Diagrams as code,
drawn together.
Excaliwow wraps Excalidraw with a developer platform. Create and edit diagrams from the terminal, the REST API, or your AI agent over MCP. Or open the canvas and sketch with your team in real time, with live cursors, comments, and share links.
free during early access · no credit card
Developer platform
Control your diagrams from Claude, the terminal, or the API.
Excaliwow is a hosted platform, not just an editor. Create, render, and edit diagrams from a script, your terminal, or your AI agent, against the same canvas your team draws on.
- REST API
- A public /api/v1 to list, read, create, render, and edit diagrams over plain HTTP.
- CLI
- @excaliwow/cli on npm. Script your diagrams locally or in CI, with inline previews.
- MCP server
- @excaliwow/mcp on npm. Five tools so Claude and other agents can build diagrams for you.
# create a diagram from a spec, in your terminal
npx @excaliwow/cli diagrams create --spec architecture.json
# render an existing one to a PNG
npx @excaliwow/cli diagrams render <id> --format png -o out.png{
"mcpServers": {
"excaliwow": {
"command": "npx",
"args": ["-y", "@excaliwow/[email protected]"],
"env": { "EXCALIWOW_TOKEN": "excw_pat_…" }
}
}
}Built for teams who sketch to think.
Every feature earns its keep. No Kanban board bolted on, and no AI forced into your canvas. Connect Claude or your own tools through the developer platform when you want them, and the canvas stays yours when you don't.
- 01
Folders that feel like your brain
Organize diagrams the way your team already thinks. Nest, drag, star, and restore instantly.
- 02
Live cursors, live edits
See teammates move across the canvas. Concurrent edits merge cleanly, so two people drawing at once never clobber each other's work.
- 03
Comments pinned to the work
Drop a pin anywhere, start a thread. Resolve, reopen, and mention, with no Slack-to-Figma context hunt.
- 04
Share links that respect permissions
Public read-only URLs, password-gated previews, or invite-only access. One toggle, revocable any time.
Sketch with your team,
at the speed of talking.
Free while we're in early access. No sales calls, no credit card. Sign up and start sketching with your team, or grab a token and drive your diagrams from code.